[src/trunk]: src/sys/arch/xen/xen convert from malloc() to kmem_alloc()

[jdolecek <jdolecek%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d9cd75d6a5a8
branches:  trunk
changeset: 1008965:d9cd75d6a5a8
user:      jdolecek <jdolecek%NetBSD.org@localhost>
date:      Tue Apr 07 09:05:14 2020 +0000

description:
convert from malloc() to kmem_alloc()

diffstat:

 sys/arch/xen/xen/xengnt.c |  18 ++++++++++--------
 1 files changed, 10 insertions(+), 8 deletions(-)

diffs (69 lines):

diff -r 43748290e349 -r d9cd75d6a5a8 sys/arch/xen/xen/xengnt.c
--- a/sys/arch/xen/xen/xengnt.c Tue Apr 07 08:35:49 2020 +0000
+++ b/sys/arch/xen/xen/xengnt.c Tue Apr 07 09:05:14 2020 +0000
@@ -1,4 +1,4 @@
-/*      $NetBSD: xengnt.c,v 1.28 2020/04/05 17:48:30 jdolecek Exp $      */
+/*      $NetBSD: xengnt.c,v 1.29 2020/04/07 09:05:14 jdolecek Exp $      */
 
 /*
  * Copyright (c) 2006 Manuel Bouyer.
@@ -26,12 +26,12 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: xengnt.c,v 1.28 2020/04/05 17:48:30 jdolecek Exp $");
+__KERNEL_RCSID(0, "$NetBSD: xengnt.c,v 1.29 2020/04/07 09:05:14 jdolecek Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/systm.h>
-#include <sys/malloc.h>
+#include <sys/kmem.h>
 #include <sys/queue.h>
 #include <sys/extent.h>
 #include <sys/kernel.h>
@@ -97,8 +97,8 @@
            gnt_max_grant_frames * PAGE_SIZE, 0, UVM_KMF_VAONLY);
        if (grant_table == NULL)
                panic("xengnt_init() no VM space");
-       gnt_entries = malloc((nr_grant_entries + 1) * sizeof(grant_ref_t),
-           M_DEVBUF, M_WAITOK);
+       gnt_entries = kmem_alloc((nr_grant_entries + 1) * sizeof(grant_ref_t),
+           KM_SLEEP);
        for (i = 0; i <= nr_grant_entries; i++)
                gnt_entries[i] = XENGNT_NO_ENTRY;
 
@@ -163,12 +163,14 @@
        u_long *pages;
        int nframes_new = gnt_nr_grant_frames + 1;
        int i, start_gnt;
+       size_t sz;
        KASSERT(mutex_owned(&grant_lock));
 
        if (gnt_nr_grant_frames == gnt_max_grant_frames)
                return ENOMEM;
 
-       pages = malloc(nframes_new * sizeof(u_long), M_DEVBUF, M_NOWAIT);
+       sz = nframes_new * sizeof(u_long);
+       pages = kmem_alloc(sz, KM_NOSLEEP);
        if (pages == NULL)
                return ENOMEM;
 
@@ -207,7 +209,7 @@
                if (setup.status != GNTST_okay) {
                        aprint_error("%s: setup table returned %d\n",
                            __func__, setup.status);
-                       free(pages, M_DEVBUF);
+                       kmem_free(pages, sz);
                        return ENOMEM;
                }
        }
@@ -242,7 +244,7 @@
                last_gnt_entry++;
        }
        gnt_nr_grant_frames = nframes_new;
-       free(pages, M_DEVBUF);
+       kmem_free(pages, sz);
        return 0;
 }